Exterior post lamp



FIG. 1 is a top, side perspective view of an exterior post lamp showing my new design;

FIG. 2 is a front elevational view thereof on an enlarged scale, the rear being identical;

FIG. 3 is a top plan view thereof on an enlarged scale;

FIG. 4 is a side elevational view thereof on an enlarged scale, the opposite side being identical;

FIG. 5 is a bottom plan view thereof on an enlarged scale. 

The ornamental design for an exterior post lamp, as shown and described. 